Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261327AbTI3KOq (ORCPT ); Tue, 30 Sep 2003 06:14:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261328AbTI3KOq (ORCPT ); Tue, 30 Sep 2003 06:14:46 -0400 Received: from [62.197.173.195] ([62.197.173.195]:62343 "EHLO mail.zmailer.org") by vger.kernel.org with ESMTP id S261327AbTI3KOo (ORCPT ); Tue, 30 Sep 2003 06:14:44 -0400 Date: Tue, 30 Sep 2003 13:14:38 +0300 From: Matti Aarnio To: Rogier Wolff Cc: Artur Klauser , linux-kernel@vger.kernel.org Subject: Re: div64.h:do_div() bug Message-ID: <20030930101438.GJ1058@mea-ext.zmailer.org> References: <20030930095229.GA32421@bitwizard.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030930095229.GA32421@bitwizard.nl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Sep 30, 2003 at 11:52:29AM +0200, Rogier Wolff wrote: > On Mon, Sep 29, 2003 at 03:25:19PM +0200, Artur Klauser wrote: > > I've found that a bug in asm-arm/div64.h:do_div() is preventing correct > > conversion of timestamps in smbfs (and probably ntfs as well) from NT to > > Nope. Nope yourself. > > if (in.n64 != out.n64) { > > printf("FAILURE: asm/div64.h:do_div() is broken for 64-bit dividends\n"); > > do_div should be/is documented as not doing 64 bit dividents. It does > 64/32 -> 32 divides, IIRC... 64/32 -> 64,32 The REMAINDER is 32 bit value. > Roger. /Matti Aarnio - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/